bufferIndex += 12; // 10 reserved

        return bufferIndex - start;
    }

    @Override
    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        // handled special in SmbTransport.doRecv()
        return 0;
    }

    @Override
    public String toString() {
        return ("SmbComReadAndXResponse[" + super.toString() + ",dataCompactionMode=" + dataCompactionMode + ",dataLength=" + dataLength

        }
        return getNegotiateResponse().isSigningRequired();
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.SmbTransport#unwrap(java.lang.Class)
     */
    @SuppressWarnings("unchecked")
    @Override
    public <T extends SmbTransport> T unwrap(final Class<T> type) {
        if (type.isAssignableFrom(this.getClass())) {
            return (T) this;
        }

    private byte subCommand;
    /** The transaction name for named pipe transactions */
    protected String name = "";
    /** Maximum buffer size set in SmbTransport.sendTransaction() before nextElement called */
    protected int maxBufferSize; // set in SmbTransport.sendTransaction() before nextElement called

    private byte[] txn_buf;

    /**
     * Constructs a transaction request.
     *

    int maxDataCount = DEFAULT_MAX_DATA_COUNT;
    byte maxSetupCount;
    int timeout = 0;
    int setupCount = 1;
    byte subCommand;
    String name = "";
    int maxBufferSize; // set in SmbTransport.sendTransaction() before nextElement called

    byte[] txn_buf;

    SmbComTransaction() {
        maxParameterCount = 1024;
        primarySetupOffset = PRIMARY_SETUP_OFFSET;

        LeaseEntry entry = leaseManager.getLease(leaseKey);
        return entry != null && entry.hasHandleCache();
    }
    return false;
}
```

### 6.3 Transport Layer Integration
```java
// In SmbTransport.java
private void handleIncomingMessage(ServerMessageBlock2 msg) {
    if (msg instanceof Smb2LeaseBreakNotification) {
        Smb2LeaseBreakNotification breakNotif = (Smb2LeaseBreakNotification) msg;